ruby-on-rails - 无法使用 Rubber 连接到 ec2

Question

我正在尝试使用 Rubber gem 将我的 Rails 应用程序上传到 amazon ec2(我正在关注 Railscasts tutorial)。每次运行 cap rubber:create_staging 时，我都无法连接到服务器。我一直在尽一切可能让它工作，但经过一整天的尝试后，我想我应该在这里发布发生的事情。

Andrews-MacBook-Pro:blog andrew$ cap rubber:create_staging
Respawning with 'bundle exec'
    triggering load callbacks
  * 2013-01-03 17:27:20 executing `rubber:init'
  * 2013-01-03 17:27:23 executing `rubber:create_staging'
Hostname to use for staging instance [production]: 
Roles to use for staging instance [apache,app,collectd,common,db:primary=true,elasticsearch,examples,graphite_server,graphite_web,graylog_elasticsearch,graylog_mongodb,graylog_server,graylog_web,haproxy,mongodb,monit,passenger,postgresql,postgresql_master,web,web_tools]: 
  * 2013-01-03 17:27:26 executing `rubber:create'
  * Security Group already in cloud, syncing rules: blog_production_production
  * Security Group already in cloud, syncing rules: blog_production_graylog_mongodb
  * Security Group already in cloud, syncing rules: blog_production_mongodb
  * Security Group already in cloud, syncing rules: blog_production_postgresql
  * Security Group already in cloud, syncing rules: blog_production_postgresql_master
  * Security Group already in cloud, syncing rules: blog_production_db
  * Security Group already in cloud, syncing rules: blog_production_app
  * Security Group already in cloud, syncing rules: blog_production_web
  * Security Group already in cloud, syncing rules: blog_production_haproxy
  * Security Group already in cloud, syncing rules: blog_production_elasticsearch
  * Security Group already in cloud, syncing rules: blog_production_monit
  * Security Group already in cloud, syncing rules: blog_production_common
  * Security Group already in cloud, syncing rules: blog_production_default
  * Security Group already in cloud, syncing rules: blog_production_graylog_elasticsearch
  * Security Group already in cloud, syncing rules: blog_production_apache
  * Security Group already in cloud, syncing rules: blog_production_passenger
  * Security Group already in cloud, syncing rules: blog_production_examples
  * Security Group already in cloud, syncing rules: blog_production_graphite_web
  * Security Group already in cloud, syncing rules: blog_production_graphite_server
  * Security Group already in cloud, syncing rules: blog_production_graylog_server
  * Security Group already in cloud, syncing rules: blog_production_collectd
  * Security Group already in cloud, syncing rules: blog_production_graylog_web
  * Security Group already in cloud, syncing rules: blog_production_web_tools
 ** Creating instance ami-eafa5883/m1.small/blog_production_default,blog_production_web,blog_production_web_tools,blog_production_production,blog_production_apache,blog_production_app,blog_production_passenger,blog_production_collectd,blog_production_common,blog_production_monit,blog_production_db,blog_production_postgresql,blog_production_postgresql_master,blog_production_elasticsearch,blog_production_examples,blog_production_graphite_server,blog_production_graphite_web,blog_production_graylog_elasticsearch,blog_production_graylog_mongodb,blog_production_mongodb,blog_production_graylog_server,blog_production_graylog_web,blog_production_haproxy/Default
 ** Instance production created: i-7b4f840a
Waiting for instances to start..........................
 ** Instance running, fetching hostname/ip data
  * 2013-01-03 17:28:37 executing `rubber:_allow_root_ssh'
  * executing "sudo -p 'sudo password: '  bash -l -c 'cp /home/ubuntu/.ssh/authorized_keys /root/.ssh/'"
    servers: ["23.20.130.97"]
.... ** Failed to connect to 23.20.130.97, retrying
  * 2013-01-03 17:28:44 executing `rubber:_allow_root_ssh'
  * executing "sudo -p 'sudo password: '  bash -l -c 'cp /home/ubuntu/.ssh/authorized_keys /root/.ssh/'"
    servers: ["23.20.130.97"]
. ** Failed to connect to 23.20.130.97, retrying
  * 2013-01-03 17:28:46 executing `rubber:_allow_root_ssh'
  * executing "sudo -p 'sudo password: '  bash -l -c 'cp /home/ubuntu/.ssh/authorized_keys /root/.ssh/'"
    servers: ["23.20.130.97"]
. ** Failed to connect to 23.20.130.97, retrying
  * 2013-01-03 17:28:49 executing `rubber:_allow_root_ssh'
  * executing "sudo -p 'sudo password: '  bash -l -c 'cp /home/ubuntu/.ssh/authorized_keys /root/.ssh/'"
    servers: ["23.20.130.97"]

etc

然后它似乎进入了无限循环并每隔几分钟尝试连接到服务器，如上所示。

编辑: 我最终通过在本地机器上重新安装 ruby​​ + gems 解决了这个问题。仍然不确定是什么原因造成的。

Answer 1

这实际上是因为当您在 EC2 上创建实例时，即使创建了实例(并且您可以在 AWS 管理控制台上看到绿灯)，它仍然需要一些时间来传播 IP 地址以供您访问部署机。

真正的解决方案是等待几分钟，因为它最终会连接。